ES515698A0 - Procedimiento para la trasmision protegida de senales digitales. - Google Patents
Procedimiento para la trasmision protegida de senales digitales.Info
- Publication number
- ES515698A0 ES515698A0 ES515698A ES515698A ES515698A0 ES 515698 A0 ES515698 A0 ES 515698A0 ES 515698 A ES515698 A ES 515698A ES 515698 A ES515698 A ES 515698A ES 515698 A0 ES515698 A0 ES 515698A0
- Authority
- ES
- Spain
- Prior art keywords
- burst
- information
- fault
- stations
- basis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/188—Time-out mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/20—Countermeasures against jamming
- H04K3/25—Countermeasures against jamming based on characteristics of target signal or of transmission, e.g. using direct sequence spread spectrum or fast frequency hopping
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/827—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection using characteristics of target signal or of transmission, e.g. using direct sequence spread spectrum or fast frequency hopping
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Communication Control (AREA)
- Mobile Radio Communication Systems (AREA)
- Time-Division Multiplex Systems (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
- Radio Relay Systems (AREA)
- Optical Communication System (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3136461A DE3136461A1 (de) | 1981-09-15 | 1981-09-15 | Verfahren zur gesicherten uebertragung von digitalen signalen |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8306555A1 ES8306555A1 (es) | 1983-06-01 |
ES515698A0 true ES515698A0 (es) | 1983-06-01 |
Family
ID=6141642
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES515698A Granted ES515698A0 (es) | 1981-09-15 | 1982-09-14 | Procedimiento para la trasmision protegida de senales digitales. |
Country Status (10)
Country | Link |
---|---|
US (1) | US4514852A (zh) |
EP (1) | EP0074657B1 (zh) |
JP (1) | JPS5860848A (zh) |
AT (1) | ATE10992T1 (zh) |
AU (1) | AU530882B2 (zh) |
CA (1) | CA1193667A (zh) |
DE (2) | DE3136461A1 (zh) |
DK (1) | DK157644C (zh) |
ES (1) | ES515698A0 (zh) |
NO (1) | NO156710C (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3429453C1 (de) * | 1984-08-10 | 1992-05-27 | Siemens Ag | Verfahren zur gesicherten Funksignaluebertragung |
DE3677676D1 (de) * | 1985-09-10 | 1991-04-04 | Huelsbeck & Fuerst | Elektronische schliesseinrichtung fuer kraftfahrzeuge. |
US4751725A (en) * | 1987-01-30 | 1988-06-14 | Motorola, Inc. | VOX remote unit control in a cellular system |
CA2116219C (en) * | 1991-08-23 | 1998-10-13 | Hiroshi Kobayashi | Radio information and communication system using multicarrier spread-spectrum transmission system |
US7460622B2 (en) * | 2003-07-18 | 2008-12-02 | Artimi Ltd | Communications systems and methods |
JP2008026915A (ja) * | 2007-08-27 | 2008-02-07 | Matsushita Electric Ind Co Ltd | 通信装置、通信方法、通信システム及びプログラム |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3754211A (en) * | 1971-12-30 | 1973-08-21 | Ibm | Fast error recovery communication controller |
US3787614A (en) * | 1972-04-20 | 1974-01-22 | Arvin Ind Inc | Two-tube color television camera |
JPS4960103A (zh) * | 1972-10-09 | 1974-06-11 | ||
DE2607433C3 (de) * | 1976-02-24 | 1980-01-17 | Siemens Ag | Digitaler Korrelationsempfänger |
US4074230A (en) * | 1976-05-24 | 1978-02-14 | Teledyne Industries, Inc. | Communication method and apparatus for providing an enhanced signal from diverse signals |
FR2362537A1 (fr) * | 1976-08-18 | 1978-03-17 | Socrat | Reseau de transmission a secret par commutation de frequence |
FR2377729A1 (fr) * | 1977-01-14 | 1978-08-11 | Thomson Csf | Dispositif de decodage de signaux numeriques, et systeme comportant un tel dispositif |
JPS54114901A (en) * | 1978-02-28 | 1979-09-07 | Fujitsu Ltd | Transmission system for cipher code data |
US4222115A (en) * | 1978-03-13 | 1980-09-09 | Purdue Research Foundation | Spread spectrum apparatus for cellular mobile communication systems |
DE2848205C3 (de) * | 1978-11-07 | 1982-02-11 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Verfahren zur Identifizierung von Synchronisationssignalen |
US4280224A (en) * | 1979-06-21 | 1981-07-21 | Ford Aerospace & Communications Corporation | Bit synchronizer with early and late gating |
FR2461411B1 (fr) * | 1979-07-13 | 1985-10-31 | Trt Telecom Radio Electr | Systeme de transmission de donnees utilisant les principes d'etalement du spectre |
US4383323A (en) * | 1980-06-09 | 1983-05-10 | Bell Telephone Laboratories, Incorporated | Spread spectrum FH-MFSK transmitter and receiver |
-
1981
- 1981-09-15 DE DE3136461A patent/DE3136461A1/de not_active Withdrawn
-
1982
- 1982-08-05 US US06/405,687 patent/US4514852A/en not_active Expired - Lifetime
- 1982-09-03 NO NO822986A patent/NO156710C/no unknown
- 1982-09-13 DE DE8282108440T patent/DE3261705D1/de not_active Expired
- 1982-09-13 CA CA000411337A patent/CA1193667A/en not_active Expired
- 1982-09-13 EP EP82108440A patent/EP0074657B1/de not_active Expired
- 1982-09-13 AT AT82108440T patent/ATE10992T1/de active
- 1982-09-14 ES ES515698A patent/ES515698A0/es active Granted
- 1982-09-14 DK DK410382A patent/DK157644C/da not_active IP Right Cessation
- 1982-09-14 JP JP57158973A patent/JPS5860848A/ja active Granted
- 1982-09-14 AU AU88380/82A patent/AU530882B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
DE3136461A1 (de) | 1983-03-31 |
DK157644C (da) | 1990-07-09 |
NO822986L (no) | 1983-03-16 |
CA1193667A (en) | 1985-09-17 |
NO156710C (no) | 1987-11-04 |
DK410382A (da) | 1983-03-16 |
NO156710B (no) | 1987-07-27 |
AU530882B2 (en) | 1983-08-04 |
DE3261705D1 (en) | 1985-02-07 |
EP0074657A1 (de) | 1983-03-23 |
ATE10992T1 (de) | 1985-01-15 |
ES8306555A1 (es) | 1983-06-01 |
US4514852A (en) | 1985-04-30 |
EP0074657B1 (de) | 1984-12-27 |
JPS5860848A (ja) | 1983-04-11 |
DK157644B (da) | 1990-01-29 |
JPS6234309B2 (zh) | 1987-07-25 |
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